A Hemoglobin Molecule Contains

question 2

Multiple Choice

A hemoglobin molecule contains

• A) three protein chains, four heme groups, and two iron ions.
• B) two protein chains, two heme groups, and four iron ions.
• C) four protein chains, two heme groups, and two iron ions.
• D) four protein chains, four heme groups, and four iron ions.
• E) four protein chains, six heme groups, and two iron ions.

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Definitions:

Detrusor Muscle

A smooth muscle layer of the urinary bladder wall that contracts to expel urine.

Renal Pyramids

Cone-shaped tissues in the kidneys that process liquid waste and play a critical role in urine formation.

Renal Medulla

The innermost part of the kidney that consists of renal pyramids and nephrons where urine formation takes place.

Renal Hilum

The entry and exit site for structures such as the ureter, blood vessels, and nerves at the kidney.